US – Page 121 – TechConnect Briefs

Dynamic Nanoindentation Analysis using Generalized Maxwell Model for Viscoelastic Materials Characterization

Yuya P.A., Patel N.G., Clarkson University, US

Nanoindentation has become a very useful tool for materials properties characterization at nanoscale. The Kelvin-Voigt (two-parameter) solid has been used as the conventional model for the tip-sample forces for viscoelastic contact where the sample stiffness [...]

Predicting Contact Angles for Regular and Irregular Surfaces

Krishnan K., Loth E., University of Virginia, US

We attempted new models for advancing and receding contact angles for both regular and irregular surfaces. While many models have been suggested for regular surfaces, comparison with experimental data shows the presence of secondary effect. [...]

Spherically symmetric oxidation model of aluminum nanoparticles

Ramazanova Z., Zyskin M., Martirosyan K.S., University of Texas at Brownsville, US

Kinetics of oxidation of metal nanoparticles acquired practical importance with rapidly developing nanoenergetic systems and materials. Nanoenergetic thermites include mixtures of Al and metal oxides in nanoscale. Our research focuses on modeling aluminum combustion in [...]

Direct observation of silver nanoparticle-ubiquitin corona formation

Ding F., Clemson University, US

The advancement of nanomedicine and the increasing applications of nanoparticles in consumer products have led to administered biological exposure and unintentional environmental accumulation of nanoparticles, causing concerns over the biocompatibility and sustainability of nanotechnology. Upon [...]

Computational Hierarchy Modeling of Self-assembled Polyurea Aerogels

Chen G.D., Missouri University of Science and Technology, US

An economical environmentally friendlier synthesis of nanoporous polyurea aerogels from triisocuyanates and water has recently been described. Owing to their multi-functionality and superior mechanical properties, those materials are finding their way into various engineering applications. [...]

GIDL Current and Pass-Gate Body Potential Modeling in 22nm HKMG PD-SOI CMOS

Luo L., Walko J.P., Johnson J.M., Springer S., IBM, US

In a floating PD (partially depleted) SOI (silicon-on-insulator) transistor, the internal DC body potential is determined by the various body current components, mainly including diode current, gate-to-body oxide tunneling current (Igb), impact ionization current (II) [...]

An Efficient and Accurate Schematic Transistor Model of FinFET Parasitic Elements

Lu N., Hook T.B., Johnson J.B., Wermer C., Putnam C., Wachnik R.A., IBM, US

We present a schematic transistor model for multi-finger multi-fin FETs, which reduces an initial complex finFET network to a very simple finFET network. The schematic finFET model is accurate in predicting overall finFET characteristics, including [...]

Integration of memristors with MEMS in different circuit configurations

Almeida S., Zubia D., University of Texas at El Paso, US

The detailed simulation of the recently proposed MEMS-memristor integration is presented. Interestingly, charge transfer is an operating principle that is common to both memristors and certain kinds of MEMS devices such as parallel plate capacitors. [...]

Electronic properties in two dimensional quantum rings consisting of two nanoelements

Sahakyan A.S., Movsesyan R.M., Kocharian A.N., California State University Los Angeles, US

Electron spectrum and ground state properties in two dimensional confined quantum rings with R(1,2) radiuses (R1 les R2), consisting of the two different (material) nanoelements divided by two sectored finite size quantum wells with various [...]

Patterned Atomic Layer Deposition on Scanning Tunneling Microscope constructed templates

Azcatl A., Ballard J., Chabal Y., Cho K.-J., Dick D., Owen J., Longo R., McDonnell S., Mordi G., Randall J., Wallace R., Zyvex Labs, US

This research shows a process combining STM lithography with the well controlled technique of ALD, indicating a new process for using single-pass STM patterning 3-D structures with sub-nanometer dimensional control. The templating was done using [...]